
Tranquillien is a Thalassian settlement in the northern Ghostlands located to the west of Sungraze Peak and overlooking the Dead Scar. Abandoned during the Third War due to the Scourge invaders' advance, Tranquillien soon fell in disrepair. In the early stages of the War on Outland, the town was retaken by a coalition of Sin'dorei and a regiment of Forsaken troops, who used the town as their base of operations to retake the Ghostlands from the Scourge forces under the command of Dar'Khan Drathir.